Hi Trisha,
If it makes you feel any better, that's exactly how I was started out for my hormone therapy - on the lowest possible dose of spiro, with no estradiol. I had waited three months for my first endo appointment, bursting-at-the-seams ready to start estrogen, and that was the net result, the lowest possible dose of spironolactone.

Six weeks later, my endo doubled the spiro dose, and added one patch a week of a twice-a-week transdermal estradiol. Six weeks after that, he doubled the spiro again, and then allowed me to do one patch twice a week.
We went along like that for ten months with this incremental approach, and by the end of that time my serum E2 was barely above the male range. He is now my former endocrinologist.
My current endo was more in tune with my wishes, but it still has taken some cajoling to get where I want to go. My estradiol dose is much higher, but I still can't convince him to prescribe me progesterone. I tell myself, "patience, grasshopper", but it is still hard.
With kindness,
Terri